John b



(No Model.)

JIB.AROHER.

APPARATUS FOR GENERATING GAS 0R VAPOR. No. 341,627.

atented May 11, 1886..

& Pholn-lhhugnbhnr. Wishinglcn. n. c.

' improved apparatus.

UNITED STATES.

PATENT OFFICE.

JOHN B. ARCHER, OF \VASHINGTON, DISTRICT OF COLUMBIA.

APPARATUS FOR GENERATING GAS OR VAPOR.

QPECIFICATION forming part of Letters Patent No. 341,627, dated I/Iay 11, 1886,

Application filed March 152, 1885. Renewed April 12, 1886. Serial No. 198,648. (No model.)

To all whom, it may concern.-

Be it known that I, JOHN B. ARCHER, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and usefulImprovements in an Apparatus forGenerating Gas or Vapor; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skllled in the art to which it appertains to make and use the same.

My invention relates to that class of apparatus made use of for generating vapor or gas from liquid hydrocarbon by the action thereon of superheated steam; and the nature thereof consists in a novel construction of the generator and novel combination of parts hereinafter described.

In the accompanying drawings, in which corresponding parts are designated by similarletters,Figure 1 is avertical central section of the i Fig. 2 is a plan, the top or crown of the generator being removed in order to more distinctly show the parts there of. Fig. 3 illustrates in detail the spherical chamber of the generator.

The object of the invention is to furnish an apparatus for generating gas or vapor from liquid hydrocarbons and steam, to be used in connection with anysuitablegasfurnace,or for the generation of a fixed gas for illuminating and other purposes; The steam enters the apparatus from any suitable source of supply by the pipe A and passes by the spiral tube A and branch pipe A to the chamber B. The spiral pipe A is incased by an iron or steel cylinder, 0, which rests upon the base D of the generator, and is provided with an annular jacket, E, which protects it from the direct action of the flame rising from the burner H. A spiral pipe, I, of larger diameter than the pipe A, is connected by a branch pipe with the spherical chamber B and by another branch pipe, K,with the retort L. The pipe I is incased by an iron or steel cylinder, M, upon which rests the circular crown N.

The chamber in which volatilization of the liquid hydrocarbons takes place consists of an outer casing, O, in which is placed a spherical shell, P, provided with a number of lugs 0r projections, (l, which support it within the chamber in such a manner as to form a steamspace between the casing and the spherical shell. The oil enters the interior of the spherical shell 1? by the pipe R, which passes down ward axially through the steam-pipe A in such a manner that steam flows around thelatter on its way to the steam-space between the casing 13 and spherical shell. A portion of the steam from the pipe A flows through the small holes 1) into the interior of the spherical shell and is brought into direct contact with the oil; but a larger portion circulates around the spherical shell and passes from the surrounding steamspace d to the pipe I,where it meets "the vapor generated within the spherical shell passing downward from the opening. The mixture of steam and vapor in passing downward through the spiral pipe I becomes heated to a high degree, and the steam and vapor are thoroughly intermixed and form a fixed gas in the retort L, which may be drawn off for combustion or illuminating purposes by the pipe S, provided with a stop-cock. A branch pipe, S, provided with a stop-cock, conducts a portion of the gas or vapor to the burner H, which superheats the steam and vapor. V

The operation of the apparatus will be readily understood from the foregoing description. The heated air and products of combustion rise from the burner H within the cylinder O,i1npinge against the crown N, and dive downward through the annular space X, between the cylinders G and M, from whence they pass by openings Y upward through the annular space V, to the crown of the generator and the chimney V, which is provided with a damper. The heated air and products of combustion are thus made to superheat the steam and gas or vapor, without directly impinging upon the conducting-pipes, which are protected by the steel or iron casings in which they are placed. The steam thus superheated imparts its heat to the oil passing through the pipe R and to the spherical shell P, and a portion of it entering through the holes I) becomes intermixed with the intlowing oil, while another portion of it, after flowing around-the spherical shell passes outward to the pipe I, where it meets the outflowing gas or vapor, with which it becomes intermixed, and still further heated by the escaping products of combustion to such an extent as to form a fixed gas in the retort L.

I am aware that it is not new to surround the oil-induction pipe by a casing forming a steamspace about the oil-pipe.

Having thus described my invention, Iclaim and desire to secure by Letters Patent of the United States 1. The combination of the spherical shell 1?, provided with lugs a and openings 6 b,and the casing B, forming a steam-space entirely surrounding the spherical shell.

2. The oil induction pipe It, the steam pipe A, forming a steam-space around the oil-induction pipe, the spherical shell P, and the casing, as and for the purpose described.

3. The combination of the oil-pipe R, steampipe A spherical shell P, casing B, and spiral vapor-pipe I. incascd by a cylinder of iron or steel. as and for the purpose described.

4. The combination of the steam-pipe A, oil-pipe R, spherical shell P. casing B, spiral vaponpipe I,branch pipe K, provided with a stopcock, and retort L, as and for the pur pose described.

5. The combination of the superheatedsteam pipe A, incased by a cylinder of iron or steel, the branch pipe A the oil-pipe R, the casing 13, and the spherical shell P, as and for the purpose described.

' 6. The combination of the burner and the spiral superheating steam'pipe surrounded by a casing of iron or steel, as and for the purpose described.

7. The combination of the burner, the cylindrical iron or steel casing inclosing the steam-superheating pipe, and the cylindrical iron or steel casing inc-losing the vapor-pipe, as and for the purpose described.

8. The combination of the snperheating steam-pipe, the cylinder of iron or steel surrounding the supcrheating steam-pipe, and the annular casing of refractory material, as and for the purpose described.

9. The combination oi'the retort L, the vaporpipe S, provided with a stop-cock, the burner H, connected by a pipe having a stopcock with the pipe S, the inclosed steam-pipe A, the inclosed vapor-pipe l, and the openings Y, as and for the purpose described.

10. In a gas'making apparatus, a superheater consisting of a coil of pipe, and an annular jacket or body of iron or steel cast directly around said coil.

11. The combination of the furnace, the steam-superheating coil of pipe, inclosed in a cylindrical casing of iron or steel, the vaporcoil of pipe inclosed in a cylindrical casing of iron or steel, inlet-pipes for steam and oil, and outlet-pipe.

12. The combination of the superheatingcoil of pipe, the cylindrical casing of iron or steel surrounding such coil of pipe, and an annular casing or furnace-wall of refractory material.

In testimony whereof I aifix my signature in presence of two witnesses.

JOHN B. ARCHER.

\Vi t n esses:

-G. FRED. KELLER,

O. S. VVIIITMAN. 

